"At least 10 people have been killed in a blast outside Gulshan-e-Iqbal Park," Jam Sajjad Hussain, spokesman for Rescue 112 said, adding that more than 30 people were injured and had been taken to various hospitals in the city. Most of the injured are women and children, Hussain said.

Senior police officer Haider Ashraf said the explosion took place Sunday in the parking area of Gulshan-e-Iqbal park. He says the explosion appeared to have been a suicide bombing, but investigations were ongoing.

He says the area was crowded because Christians are celebrating the Easter holiday and many families were leaving the park when the blast occurred. He says the death toll could still rise as many of the wounded were in a critical condition. In fact, Pakistani newspaper Dawn tweeted that the death toll was at least 53. Emergency has been declared at all government hospitals in Lahore, the paper said.